Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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